Gas heater



.Oct. 13, 1931- B. c. BARTLEBAUGH 1,827,379

GAS HEATER Filed Jan. 7, 1931 3 Sheets-Sheet 1 344mm wtoz Z. GQBarZ 2656x1772,

anew/nap.

Oct. 13, 1931. c, BARTLEBAUGH 1,827,379

GAS HEATER.

Filed Jan. 7, 19 31 3 Sheets-Sheet 2 avtoamaqo.

1931- B. c. BARTLEBAUGH 1,827,379

GAS HEATER Filed Jan. 7, 1931 3 Sheets-Sheet 3 Z. CZa7ZZeZauj l/ WWW.

flwawuwg after/ego -10 Heaters of Pa ented Oct." 13,1931 T Baum-Ammo; nnit'rnnzeAtrenflorwnnnmivmwnsr 'vrnemm T lens nm'rnn The invention relates toirnprovexnentsin I gas heaters of the so-calledfburngover type,

in which all unburned gas escaping froin the burner, ismixedfwith fresh air and-directed to the'jets of flanie exuding fromYsaid-bnrner',

so that they will be consumed, vins'tead ofj the front ofthehe'aterpbe inreased so that; I they Will mix. and be; conducted into the;

burner flame with lessLdrop "inlternperature "of said gases, and I have succeededin-pro e ducing a new and 1 improved f structure A I wh chthe requlsltelh gh veloc ties o iascend-f mg gases and lncom ngair are attained, the

object of the, present applicatienbein to protect this improved structuigef:

With the foregoing in view the hivent'ion' resides in the novel snbjectlmatter Ehereim after described an dv clainied, description abe ing accomplished by reference to the-accom I I i free," being spaced irearwardly fronil the panying drawings. 7 r

Fig. 1 is a perspective view of a heaterconstructed in accordance rnyinvention- Fig. '2 is a :vert-icallongitudinal sectional view on line 2--2 of Fig.3. i v

Fig. 3 is a vertical transverse sectional view on line 33 of Fig. 2.

Fig. 4: is a horizontal sectional view on line llofFig/3. V p v Figs. 5,6 and47 are perspective views of parts hereinafter described." v p g Y r The drawings abovebriefiydescribed, il lustrate a preferred construction, andflwhile 45 this construction will be specifically ex plained; it is to be understood that within the 1 scope of the invention as claimed, minor vari-. ations maybe made '7 i I .The heater e'bodies a casing, 8' having 7 vertical front andrearwallsi)"and 10 and v and with a sill '14 projecting rearwardly from of the latter and the firewall 20, being spaced vertical end walls ll, said pro Vided with a top '12 which" is arched from fro'nt'to rear on a curved line merging into:v

saidfront and'f bac'k walls;leavingjtheinner. t ,1

side of said top with no portions whlchwc'an 55 interfere with free and rapid @travelfof air, as will be hereinafter further explained; The front wall Q'i'sjpro'vided with an opening the lowere d'geof said opening; and thelo wer portions-of the'er'id walls "ll zare' formed with air-admission openingsfl5. A lourner-sup- 1 porting plate I6 is secured to andgpr jcps; rearwardly from the sill'l'k, anda :hori-fziontallyl'elongatedburner l'fisupportedlby j 6'5? 7 said-vplate lfi, being p rovidedwith RPl'O I- priate? gas-conducting i piping :18 and air-1] n mixers'l'9. c 'c vertical longitudinal fire -wa'll 20 is .fsef cured in thecasing 8 and projects upwardly I from 'thefrear por'tionfo-f the burnerfl 'z, said' firefwall being provided with @axfre end "21 downwardly spaced from the casing,

top'l2. The lower portion ofthe fire wa'uzee p p is' preferably offset forwardly as shownpand 5 1 L i said lower wall 'portion is providedwith a I f v row" ofair-conducting perforations I22 dis-,

posed ,ne'arthe upper cextren i tyfof"the-burner I7. Behindthe'burner and the lower .por-f ti'on ofithe vwall 20, isa baflle 23 which inclines forwardly, the upper end of said baffle b eing ing thefcasing through the openings 1 5 ;is

guided "the baffle'23 toward said pe f c tions22.

if j iii-vertical longitudinal partition is s e cured in the casing 8 between therear wall'lQ fronrboth of thesegpartslO and2.0'.' -The partijtion 24 is provided with val nee; lower end 25: spaced horizontallylrearward from the? perforationsfliz, and the'upperlend of said, partitionT2 'is provided with a r'cowl 26 whichi concentric w h the casinggtop flhis cowl 26 is inwardly spaced from; e casing top 1.2 1

spaced re'a'rwardl'y from the upper end of jthe 1 is" transversely cu-rved'gand preferably "about perioratlons 22, with considerable force, so

opening 13. Hence, a channel 28 is provided between the cowl 26 and the casing top 12 and between the partition 2a and the rear casing wall 10 for the purpose of conducting the air which enters through the opening 13, the

the arrows 30 as rising from the burner17,

will be caught by the cowl 26 and directed rearwardly and downwardly without resistance, so that they flow more rapidly behind the'fire wall 20. These hot unburned gases rapidly mix with theheated air discharged from the passage 28, and the mixture of gases and air blows forwardly through'the that said mixture is directed'under pressure into the flame ascending from the burner 17, insuring combustion of previously unburned fuel units. This burnover operation continues uninterruptedly as long as the heater provement, in that the air and gases flowing as indicated by the arrows 29 and 30 are not.

resisted, the lack of resistance beingdue priinarlly to the shape of the cowl 26 and the casing top 12. Another element of the improved structure which I believe to be of importance in attaining the better results, is the baffle 23 which directs a quantity of fresh'air entering through the openings 15 toward the perfora- 3 tlons 22 as indicated by the arrows 31, to mix with the heated air from the passage 28 and with the hot gases flowing downward behind the fire wall 20, the mixture flowing with considerable force'through said perforations 22.

Attention is invited to the fact that the construction is such as to apply the flame of the burner to the returned unburnt gas, thereby destroying the poison and unpleasant odors. The offset in the fire wall contributes in 'obtaining this result, as the flame cannot play upon said fire wall. It is known that where the gas flame strikes iron or any object, poison gases and unpleasant odors are given 011 from the gas fire.

I claim 1. A gas heater comprising a casing comprising front, back and end walls and a top arched from front to rear on a curved line merging into said front and back walls, said front wall having an opening, a horizontally elongated burner mounted longitudinally in mg, a longitudinal fire wall extending upsaid casing near the lower end of. said open spaced forwardly from said rear casing wall and spaced downwardly from said arched casing top, said fire wall having a free upper end having air perforations near the upper extremity of the burner, and a vertical longitudinal partition in said casing disposed between and spaced from said back wall and said fire wall, the lower end of said partition being-free and extending downwardly as far as said perforations of said fire wall, the .upper end of said partition being provided with a forwardly projecting transversely curved cowl spaced upwardly from said fire wall and spaced inwardly from said arched top, the rear-portion of said cowl merging into said partition and the front end of said cowl being free.

2. A gas heater comprising a casing comprising front, back andend walls and a top arched from front to rear on a curved line merging into said front and back walls, said front wall having an air admitting opening, the lower portion of said casing being provided'with air admission means,a horizontally elongated burner mounted longitudinah ly in said casing behind the front wall thereof, a longitudinal fire wall extending upwardly from the rear portion of said burner, spaced forwardly from said rear casing wall and spaced downwardly from said arched casing top, said fire wall having a free upper endand having air perforations in its lower portion disposed nearthe upper extremity of thefburner, a baffle wall behind said burner incliningforwardly toward said fire wall and havinga' free upper end spaced downwardly from said air perforations and spaced rearwardly from said fire wall, and a vertical longit-udinal partition in said casing disposed between'and spaced from said back wall and said fire wall, the lower end of said partition beingfree, the upper end of said partition being provided with a transversely curved forwardly projecting cowlspaced upwardly from said firewall and spaced inwardly from said arched top, the rear portion of said cowl merginginto the upper end of said partition and the front end of said cowl being free.

In testimony whereof I aifix my signature.

BENJAMIN C. BARTLEBAUGH. 

